Bicycle chainring



FIG. 1 is a front perspective view of a bicycle chainring showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the bicycle chainring that form no part of the claimed design. 

CLAIM We claim the ornamental design for a bicycle chainring, as shown and described. 